Equations of A line

Slope-Intercept Form

100

Slope = 4

y-intercept = -7

y=4x-7

200

Slope = 1/8

y-intercept = 24

y=1/8x+24

300

Line passes through; (1,12) and (0,9)

y=3x+9

Point Slope Form

100

Slope = -3

Point = (9,2)

y-2=-3(x-9)

200

Slope = 8

Point = (6,2)

y-2=8(x-6)

300

m=5

point (3,-2)

y+2=5(x-3)

What's my slope?

100

(1,8) and (-3,-8)

4

200

(-1,9) and (1,5)

-2

300

(-2,7) and (4,7)

0